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Shape evolution and magnetic rotation in Nd-141

Abstract : The high-spin states in Nd-141 were investigated using the Zr-96(Ca-48, 3n) reaction and the EU-ROBALL array. The level scheme has been extended up to an excitation energy of around 16MeV and spin 81/2. Two new bands of dipole transitions and three bands presumably of quadrupole transitions were identified and their connections to low-lying states were established. Cranked Nilsson-Strutinsky and tilted axis cranking calculations are combined in the interpretation of the observed dipole bands. The high-spin bands with assigned quadrupole transitions are interpreted as triaxial bands, while the dipole bands appear in the calculations to exhibit a shape evolution from low-deformation triaxial to spherical shape. They can be classified as magnetic rotation, with transition probabilities that show the characteristic decrease with angular momentum caused by the shears mechanism.
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Contributor : Emilie Bonnardel <>
Submitted on : Thursday, May 21, 2015 - 9:39:43 AM
Last modification on : Wednesday, December 2, 2020 - 4:36:04 PM



T. Zerrouki, C.M. Petrache, R. Leguillon, K. Hauschild, A. Korichi, et al.. Shape evolution and magnetic rotation in Nd-141. European Physical Journal A, EDP Sciences, 2015, 51 (issue 4), pp.50. ⟨10.1140/epja/i2015-15050-y⟩. ⟨in2p3-01154057⟩



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